The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Blower or Switch? and another AC question or two

Longhorn Man · 06-21-2010, 08:59 AM

your switch problem is more likely to be a bad relay, located on the heater box by the passenger kick panel up high. They commonly rust out and stop working.
The shut off valve you see on the fenderwell is original, but I can't help you on running with or without it... being I have never had working A/C in any of my trucks.

06-21-2010, 08:59 AM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Blower or Switch? and another AC question or two your switch problem is more likely to be a bad relay, located on the heater box by the passenger kick panel up high. They commonly rust out and stop working. The shut off valve you see on the fenderwell is original, but I can't help you on running with or without it... being I have never had working A/C in any of my trucks.